Today is an important day — after 28 releases of the sixth version we present our PVS-Studio 7.00, in which the key innovation is the support of the Java language. However, during 2018 we have acquired many other important changes related to C++, C#, infrastructure and support of coding standards. Therefore, we bring to your attention a note that sums up the major changes that have happened in PVS-Studio for the last time.
What to think during NALSD interview
7 min
9.1KThere are a lot of posts about what a typical coding interview at Google looks like. But, while not as widely described and discussed, there is also quite often a system design interview. For an SRE position it’s NALSD: non-abstract large system design. The key difference between SWE and SRE interviews consists in these two letters: NA.
So, what is the difference? How to be prepared for this interview? Let’s be non-abstract, and use an example. To be more non-abstract, let’s take something from the material world, such that you won’t be asked the exact same thing at the real interview (at least, not at the Google interview) :)
So, let’s design a public library system. For the paper books, like you have seen everywhere around. The whole text below was written all at once within around one hour, to roughly show you the areas that you should be able to cover / touch during the interview. Please excuse some disorder, that’s how I think (therefore I am).
So, what is the difference? How to be prepared for this interview? Let’s be non-abstract, and use an example. To be more non-abstract, let’s take something from the material world, such that you won’t be asked the exact same thing at the real interview (at least, not at the Google interview) :)
So, let’s design a public library system. For the paper books, like you have seen everywhere around. The whole text below was written all at once within around one hour, to roughly show you the areas that you should be able to cover / touch during the interview. Please excuse some disorder, that’s how I think (therefore I am).
+22
How to crack a self-service terminal and why 80% of them are under threat
2 min
2.9KTranslation
Author of the original post in Russian: frsamara
I always loved playing with things and testing them under all sorts of wacky conditions as a kid and even considered getting a job as a tester, but I never did. Nevertheless, I still like taking things made by someone else and poking them for vulnerabilities.
I remember, when first self-service payment terminals started popping around town, I saw one of them put up a browser window while updating, and the game was on — I broke it almost immediately. There’s been a lot of discussion about it since then and developers have started to pay a lot more attention towards security in these machines.
Recently, fast-food joints have started installing these terminals. Obviously, it’s quite convenient: just tap a couple of virtual buttons, place an order, pay with a bank card and wait for your number to show on the screen.
Also, nearly every big mall has these interactive boards with floor plans and information on various sales and discounts.
How secure are they?
I always loved playing with things and testing them under all sorts of wacky conditions as a kid and even considered getting a job as a tester, but I never did. Nevertheless, I still like taking things made by someone else and poking them for vulnerabilities.
I remember, when first self-service payment terminals started popping around town, I saw one of them put up a browser window while updating, and the game was on — I broke it almost immediately. There’s been a lot of discussion about it since then and developers have started to pay a lot more attention towards security in these machines.
Recently, fast-food joints have started installing these terminals. Obviously, it’s quite convenient: just tap a couple of virtual buttons, place an order, pay with a bank card and wait for your number to show on the screen.
Also, nearly every big mall has these interactive boards with floor plans and information on various sales and discounts.
How secure are they?
+13
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Authors' contribution
alizar 18254.9ru_vds 8843.3amarao 5927.0marks 5856.7it_man 3106.6oldadmin 3027.0BarsMonster 2995.0aleksandrit 2889.4ntsaplin 2853.0eucariot 2797.0